/******************************************************************************
* *
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*****************************************************************************
* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
*/
#include <string.h>
#include "ixheaacd_sbr_common.h"
#include <ixheaacd_type_def.h>
#include "ixheaacd_constants.h"
#include <ixheaacd_basic_ops32.h>
#include <ixheaacd_basic_ops16.h>
#include <ixheaacd_basic_ops40.h>
#include "ixheaacd_basic_ops.h"
#include <ixheaacd_basic_op.h>
#include "ixheaacd_intrinsics.h"
#include "ixheaacd_common_rom.h"
#include "ixheaacd_basic_funcs.h"
#include "ixheaacd_bitbuffer.h"
#include "ixheaacd_defines.h"
#include "ixheaacd_pns.h"
#include <ixheaacd_aac_rom.h>
#include "ixheaacd_pulsedata.h"
#include "ixheaacd_drc_data_struct.h"
#include "ixheaacd_lt_predict.h"
#include "ixheaacd_channelinfo.h"
#include "ixheaacd_drc_dec.h"
#include "ixheaacd_sbrdecoder.h"
#include "ixheaacd_defines.h"
#include "ixheaacd_sbrdecoder.h"
#include "ixheaacd_definitions.h"
#include "ixheaacd_error_codes.h"
#include "ixheaacd_pulsedata.h"
#include "ixheaacd_sbrdecsettings.h"
#include "ixheaacd_sbr_scale.h"
#include "ixheaacd_lpp_tran.h"
#include "ixheaacd_env_extr_part.h"
#include <ixheaacd_sbr_rom.h>
#include "ixheaacd_hybrid.h"
#include "ixheaacd_ps_dec.h"
#include "ixheaacd_env_extr.h"
#include "ixheaacd_qmf_dec.h"
#include "ixheaacd_env_calc.h"
#include "ixheaacd_sbr_const.h"
#include "ixheaacd_pvc_dec.h"
#include "ixheaacd_sbr_dec.h"
#include "ixheaacd_env_extr.h"
#include "ixheaacd_env_calc.h"
#include "ixheaacd_ps_dec.h"
#include "ixheaacd_function_selector.h"
#include "ixheaacd_audioobjtypes.h"
VOID ixheaacd_qmf_enrg_calc(ia_sbr_dec_struct *ptr_sbr_dec,
WORD32 upsample_ratio_idx, WORD32 low_pow_flag) {
WORD32 i, j;
if (upsample_ratio_idx == SBR_UPSAMPLE_IDX_4_1) {
for (i = 0; i < ptr_sbr_dec->str_codec_qmf_bank.num_time_slots; i++) {
for (j = 0; j < 16; j++) {
ptr_sbr_dec->qmf_energy_buf[i][j] =
ptr_sbr_dec->qmf_buf_real[2 + i][j] *
ptr_sbr_dec->qmf_buf_real[2 + i][j];
if (!low_pow_flag)
ptr_sbr_dec->qmf_energy_buf[i][j] +=
(ptr_sbr_dec->qmf_buf_imag[2 + i][j] *
ptr_sbr_dec->qmf_buf_imag[2 + i][j]);
}
}
for (i = 0; i < 16; i++) {
for (j = 0; j < 16; j++) {
ptr_sbr_dec->pvc_qmf_enrg_arr[32 * i + j] =
(ptr_sbr_dec->qmf_energy_buf[4 * i + 0][j] +
ptr_sbr_dec->qmf_energy_buf[4 * i + 1][j] +
ptr_sbr_dec->qmf_energy_buf[4 * i + 2][j] +
ptr_sbr_dec->qmf_energy_buf[4 * i + 3][j]) *
0.25f;
}
}
} else {
for (i = 0; i < ptr_sbr_dec->str_codec_qmf_bank.num_time_slots; i++) {
for (j = 0; j < 32; j++) {
ptr_sbr_dec->qmf_energy_buf[i][j] =
ptr_sbr_dec->qmf_buf_real[2 + i][j] *
ptr_sbr_dec->qmf_buf_real[2 + i][j];
if (!low_pow_flag)
ptr_sbr_dec->qmf_energy_buf[i][j] +=
(ptr_sbr_dec->qmf_buf_imag[2 + i][j] *
ptr_sbr_dec->qmf_buf_imag[2 + i][j]);
}
}
for (i = 0; i < 16; i++) {
for (j = 0; j < 32; j++) {
ptr_sbr_dec->pvc_qmf_enrg_arr[32 * i + j] =
(ptr_sbr_dec->qmf_energy_buf[2 * i + 0][j] +
ptr_sbr_dec->qmf_energy_buf[2 * i + 1][j]) *
0.5f;
}
}
}
}
VOID ixheaacd_hbe_repl_spec(WORD32 x_over_qmf[MAX_NUM_PATCHES],
FLOAT32 qmf_buf_real[][64],
FLOAT32 qmf_buf_imag[][64], WORD32 no_bins,
WORD32 max_stretch) {
WORD32 patch_bands;
WORD32 patch, band, col, target, source_bands, i;
WORD32 num_patches = 0;
for (i = 1; i < MAX_NUM_PATCHES; i++) {
if (x_over_qmf[i] != 0) {
num_patches++;
}
}
for (patch = (max_stretch - 1); patch < num_patches; patch++) {
patch_bands = x_over_qmf[patch + 1] - x_over_qmf[patch];
target = x_over_qmf[patch];
source_bands = x_over_qmf[max_stretch - 1] - x_over_qmf[max_stretch - 2];
while (patch_bands > 0) {
WORD32 ixheaacd_num_bands = source_bands;
WORD32 start_band = x_over_qmf[max_stretch - 1] - 1;
if (target + ixheaacd_num_bands >= x_over_qmf[patch + 1]) {
ixheaacd_num_bands = x_over_qmf[patch + 1] - target;
}
if ((((target + ixheaacd_num_bands - 1) & 1) +
((x_over_qmf[max_stretch - 1] - 1) & 1)) &
1) {
if (ixheaacd_num_bands == source_bands) {
ixheaacd_num_bands--;
} else {
start_band--;
}
}
for (col = 0; col < no_bins; col++) {
WORD32 i = 0;
band = target + ixheaacd_num_bands - 1;
if (64 <= band) {
band = 63;
}
if (x_over_qmf[patch + 1] <= band) {
band = x_over_qmf[patch + 1] - 1;
}
for (i = 0; i < ixheaacd_num_bands; i++, band--) {
qmf_buf_real[col][band] = qmf_buf_real[col][start_band - i];
qmf_buf_imag[col][band] = qmf_buf_imag[col][start_band - i];
}
}
target += ixheaacd_num_bands;
patch_bands -= ixheaacd_num_bands;
}
}
}
VOID ixheaacd_esbr_analysis_filt_block(ia_sbr_dec_struct *ptr_sbr_dec,
ia_sbr_tables_struct *sbr_tables_ptr,
WORD32 op_delay) {
FLOAT32 *core_coder_samples;
WORD32 *ptr_filt_states;
WORD32 *ptr_filt_states_1;
WORD32 *ptr_filt_states_2;
WORD32 *ptr_temp;
WORD32 *ptr_win_coeffs_1;
WORD32 *ptr_win_coeffs_2;
WORD32 *ptr_win_coeffs;
WORD32 *ploc_qmf_buf_real;
WORD32 *ploc_qmf_buf_imag;
WORD32 local_qmf_buffer[128] = {0};
WORD32 anal_buf[2 * 32];
WORD32 idx, z;
WORD32 core_syn_ch_index;
FLOAT32 gain;
WORD32 filt_offset;
WORD32 num_columns;
ia_qmf_dec_tables_struct *qmf_dec_tables_ptr =
sbr_tables_ptr->qmf_dec_tables_ptr;
ia_sbr_qmf_filter_bank_struct *pstr_qmf_anal_bank =
&ptr_sbr_dec->str_codec_qmf_bank;
core_coder_samples = ptr_sbr_dec->time_sample_buf;
ptr_filt_states = pstr_qmf_anal_bank->state_new_samples_pos_low_32;
ptr_win_coeffs_1 = pstr_qmf_anal_bank->filter_pos_32;
num_columns = pstr_qmf_anal_bank->no_channels;
switch (num_columns) {
case 16:
ptr_win_coeffs_2 = ptr_win_coeffs_1 + 64;
gain = 128.0f;
filt_offset = 64;
break;
case 24:
ptr_win_coeffs_2 = ptr_win_coeffs_1 + 24;
gain = 12.0f;
filt_offset = 24;
break;
case 32:
ptr_win_coeffs_2 = ptr_win_coeffs_1 + 64;
gain = 256.0f;
filt_offset = 64;
break;
default:
ptr_win_coeffs_2 = ptr_win_coeffs_1 + 64;
gain = 256.0f;
filt_offset = 64;
break;
}
gain = 1.0f / gain;
pstr_qmf_anal_bank->usb = num_columns;
ploc_qmf_buf_real = &local_qmf_buffer[0];
ploc_qmf_buf_imag = &local_qmf_buffer[64];
ptr_filt_states_1 = pstr_qmf_anal_bank->anal_filter_states_32;
ptr_filt_states_2 = pstr_qmf_anal_bank->anal_filter_states_32 + num_columns;
for (idx = 0; idx < ptr_sbr_dec->str_codec_qmf_bank.num_time_slots; idx++) {
for (z = 0; z < num_columns; z++) {
ptr_filt_states[num_columns - 1 - z] =
(WORD32)(core_coder_samples[z] * (1 << 15));
}
ixheaacd_esbr_qmfanal32_winadd(ptr_filt_states_1, ptr_filt_states_2,
ptr_win_coeffs_1, ptr_win_coeffs_2, anal_buf,
num_columns);
core_coder_samples += num_columns;
ptr_filt_states -= num_columns;
if (ptr_filt_states < pstr_qmf_anal_bank->anal_filter_states_32) {
ptr_filt_states = pstr_qmf_anal_bank->anal_filter_states_32 +
10 * num_columns - num_columns;
}
ptr_temp = ptr_filt_states_1;
ptr_filt_states_1 = ptr_filt_states_2;
ptr_filt_states_2 = ptr_temp;
ptr_win_coeffs_1 += filt_offset;
ptr_win_coeffs_2 += filt_offset;
ptr_win_coeffs = ptr_win_coeffs_1;
ptr_win_coeffs_1 = ptr_win_coeffs_2;
ptr_win_coeffs_2 = ptr_win_coeffs;
if (ptr_win_coeffs_2 >
(pstr_qmf_anal_bank->analy_win_coeff_32 + filt_offset * 10)) {
ptr_win_coeffs_1 = pstr_qmf_anal_bank->analy_win_coeff_32;
ptr_win_coeffs_2 = pstr_qmf_anal_bank->analy_win_coeff_32 + filt_offset;
}
ixheaacd_esbr_fwd_modulation(anal_buf, &ploc_qmf_buf_real[0],
&ploc_qmf_buf_imag[0], pstr_qmf_anal_bank,
qmf_dec_tables_ptr);
core_syn_ch_index = num_columns;
for (z = 0; z < core_syn_ch_index; z++) {
ptr_sbr_dec->qmf_buf_real[op_delay + idx][z] =
((FLOAT32)ploc_qmf_buf_real[z] * gain);
ptr_sbr_dec->qmf_buf_imag[op_delay + idx][z] =
((FLOAT32)ploc_qmf_buf_imag[z] * gain);
}
for (z = core_syn_ch_index; z < num_columns; z++) {
ptr_sbr_dec->qmf_buf_real[op_delay + idx][z] = (FLOAT32)0.0f;
ptr_sbr_dec->qmf_buf_imag[op_delay + idx][z] = (FLOAT32)0.0f;
}
}
pstr_qmf_anal_bank->filter_pos_32 = ptr_win_coeffs_1;
pstr_qmf_anal_bank->state_new_samples_pos_low_32 = ptr_filt_states;
}
VOID ixheaacd_esbr_synthesis_regrp(
FLOAT32 *qmf_buf_real, FLOAT32 *qmf_buf_imag,
ia_sbr_dec_struct *ptr_sbr_dec,
ia_sbr_frame_info_data_struct *ptr_frame_data,
ia_sbr_header_data_struct *ptr_header_data, WORD32 stereo_config_idx,
WORD32 apply_processing) {
WORD32 i, k;
WORD32 stop_border = 0;
WORD32 num_anal_bands = ptr_sbr_dec->str_codec_qmf_bank.no_channels;
WORD32 x_over_band = num_anal_bands;
if (apply_processing) {
if (ptr_header_data->sbr_ratio_idx == SBR_UPSAMPLE_IDX_4_1) {
stop_border = 4 * ptr_frame_data->str_frame_info_details.border_vec[0];
} else {
stop_border = 2 * ptr_frame_data->str_frame_info_details.border_vec[0];
}
x_over_band = ptr_header_data->pstr_freq_band_data->qmf_sb_prev;
}
if (stereo_config_idx > 0) {
for (i = 0; i < stop_border; i++) {
for (k = 0; k < 3; k++) {
*qmf_buf_real++ =
ptr_sbr_dec->qmf_buf_real[(2) + i + HYBRID_FILTER_DELAY][k];
*qmf_buf_imag++ =
ptr_sbr_dec->qmf_buf_imag[(2) + i + HYBRID_FILTER_DELAY][k];
}
for (; k < x_over_band; k++) {
*qmf_buf_real++ = ptr_sbr_dec->qmf_buf_real[(2) + i][k];
*qmf_buf_imag++ = ptr_sbr_dec->qmf_buf_imag[(2) + i][k];
}
for (; k < 64; k++) {
*qmf_buf_real++ = ptr_sbr_dec->sbr_qmf_out_real[(2) + i][k];
*qmf_buf_imag++ = ptr_sbr_dec->sbr_qmf_out_imag[(2) + i][k];
}
qmf_buf_real += 14;
qmf_buf_imag += 14;
}
x_over_band = ptr_header_data->pstr_freq_band_data->sub_band_start;
for (; i < ptr_sbr_dec->str_codec_qmf_bank.num_time_slots; i++) {
for (k = 0; k < 3; k++) {
*qmf_buf_real++ =
ptr_sbr_dec->qmf_buf_real[(2) + i + HYBRID_FILTER_DELAY][k];
*qmf_buf_imag++ =
ptr_sbr_dec->qmf_buf_imag[(2) + i + HYBRID_FILTER_DELAY][k];
}
for (; k < x_over_band; k++) {
*qmf_buf_real++ = ptr_sbr_dec->qmf_buf_real[(2) + i][k];
*qmf_buf_imag++ = ptr_sbr_dec->qmf_buf_imag[(2) + i][k];
}
for (; k < 64; k++) {
*qmf_buf_real++ = ptr_sbr_dec->sbr_qmf_out_real[(2) + i][k];
*qmf_buf_imag++ = ptr_sbr_dec->sbr_qmf_out_imag[(2) + i][k];
}
qmf_buf_real += 14;
qmf_buf_imag += 14;
}
} else {
for (i = 0; i < stop_border; i++) {
for (k = 0; k < x_over_band; k++) {
*qmf_buf_real++ = ptr_sbr_dec->qmf_buf_real[(2) + i][k];
*qmf_buf_imag++ = ptr_sbr_dec->qmf_buf_imag[(2) + i][k];
}
for (; k < 64; k++) {
*qmf_buf_real++ = ptr_sbr_dec->sbr_qmf_out_real[(2) + i][k];
*qmf_buf_imag++ = ptr_sbr_dec->sbr_qmf_out_imag[(2) + i][k];
}
qmf_buf_real += 14;
qmf_buf_imag += 14;
}
x_over_band = ptr_header_data->pstr_freq_band_data->sub_band_start;
for (; i < ptr_sbr_dec->str_codec_qmf_bank.num_time_slots; i++) {
for (k = 0; k < x_over_band; k++) {
*qmf_buf_real++ = ptr_sbr_dec->qmf_buf_real[(2) + i][k];
*qmf_buf_imag++ = ptr_sbr_dec->qmf_buf_imag[(2) + i][k];
}
for (; k < 64; k++) {
*qmf_buf_real++ = ptr_sbr_dec->sbr_qmf_out_real[(2) + i][k];
*qmf_buf_imag++ = ptr_sbr_dec->sbr_qmf_out_imag[(2) + i][k];
}
qmf_buf_real += 14;
qmf_buf_imag += 14;
}
}
}
VOID ixheaacd_mps_esbr_synthesis_regrp(FLOAT32 *qmf_buf_real,
FLOAT32 *qmf_buf_imag,
ia_sbr_dec_struct *ptr_sbr_dec,
WORD32 stereo_config_idx) {
WORD32 i, k;
WORD32 num_anal_bands = ptr_sbr_dec->str_codec_qmf_bank.no_channels;
WORD32 x_over_band = num_anal_bands;
if (stereo_config_idx > 0) {
for (i = 0; i < ptr_sbr_dec->str_codec_qmf_bank.num_time_slots; i++) {
for (k = 0; k < 3; k++) {
*qmf_buf_real++ =
ptr_sbr_dec->qmf_buf_real[(2) + i + HYBRID_FILTER_DELAY][k];
*qmf_buf_imag++ =
ptr_sbr_dec->qmf_buf_imag[(2) + i + HYBRID_FILTER_DELAY][k];
}
for (; k < x_over_band; k++) {
*qmf_buf_real++ = ptr_sbr_dec->qmf_buf_real[(2) + i][k];
*qmf_buf_imag++ = ptr_sbr_dec->qmf_buf_imag[(2) + i][k];
}
for (; k < 64; k++) {
*qmf_buf_real++ = 0;
*qmf_buf_imag++ = 0;
}
qmf_buf_real += 14;
qmf_buf_imag += 14;
}
} else {
for (i = 0; i < ptr_sbr_dec->str_codec_qmf_bank.num_time_slots; i++) {
for (k = 0; k < x_over_band; k++) {
*qmf_buf_real++ = ptr_sbr_dec->qmf_buf_real[(2) + i][k];
*qmf_buf_imag++ = ptr_sbr_dec->qmf_buf_imag[(2) + i][k];
}
for (; k < 64; k++) {
*qmf_buf_real++ = 0.0f;
*qmf_buf_imag++ = 0.0f;
}
qmf_buf_real += 14;
qmf_buf_imag += 14;
}
}
}
VOID ixheaacd_esbr_synthesis_filt_block(
ia_sbr_dec_struct *ptr_sbr_dec, ia_sbr_header_data_struct *ptr_header_data,
ia_sbr_frame_info_data_struct *ptr_frame_data, WORD32 apply_processing,
FLOAT32 **qmf_buf_real, FLOAT32 **qmf_buf_imag, WORD32 stereo_config_idx,
ia_sbr_tables_struct *sbr_tables_ptr, WORD32 mps_sbr_flag, WORD32 ch_fac) {
WORD32 i, k, p1;
WORD32 *ptr_filt_states;
WORD32 *ptr_filt_states_1;
WORD32 *ptr_filt_states_2;
WORD32 *filter_l;
WORD32 *ploc_qmf_buf_real;
WORD32 *ploc_qmf_buf_imag;
WORD32 out_scalefactor;
WORD32 sixty4;
WORD32 no_synthesis_channels;
WORD32 ixheaacd_drc_offset;
FLOAT32 *syn_buffer;
WORD32 *local_qmf_buffer = ptr_sbr_dec->sbr_scratch_local;
WORD32 *time_out = &(ptr_sbr_dec->sbr_scratch_local[128]);
ia_sbr_qmf_filter_bank_struct *qmf_bank =
&ptr_sbr_dec->str_synthesis_qmf_bank;
ia_qmf_dec_tables_struct *qmf_dec_tables_ptr =
sbr_tables_ptr->qmf_dec_tables_ptr;
if (!mps_sbr_flag) {
ixheaacd_esbr_synthesis_regrp(&qmf_buf_real[0][0], &qmf_buf_imag[0][0],
ptr_sbr_dec, ptr_frame_data, ptr_header_data,
stereo_config_idx, apply_processing);
} else {
ixheaacd_mps_esbr_synthesis_regrp(&qmf_buf_real[0][0], &qmf_buf_imag[0][0],
ptr_sbr_dec, stereo_config_idx);
}
out_scalefactor = 5;
qmf_bank->no_channels = 64;
qmf_bank->esbr_cos_twiddle =
(WORD32 *)qmf_dec_tables_ptr->esbr_sin_cos_twiddle_l64;
qmf_bank->esbr_alt_sin_twiddle =
(WORD32 *)qmf_dec_tables_ptr->esbr_alt_sin_twiddle_l64;
qmf_bank->filter_pos_syn_32 +=
qmf_dec_tables_ptr->esbr_qmf_c - qmf_bank->p_filter_32;
qmf_bank->p_filter_32 = qmf_dec_tables_ptr->esbr_qmf_c;
sixty4 = NO_SYNTHESIS_CHANNELS;
ptr_filt_states = qmf_bank->filter_states_32;
no_synthesis_channels = qmf_bank->no_channels;
ptr_filt_states_1 = &ptr_filt_states[0];
ptr_filt_states_2 = ptr_filt_states_1 + no_synthesis_channels;
filter_l = qmf_bank->filter_pos_syn_32;
p1 = 0;
ixheaacd_drc_offset = qmf_bank->ixheaacd_drc_offset;
for (i = 0; i < ptr_sbr_dec->str_codec_qmf_bank.num_time_slots; i++) {
for (k = 0; k < 64; k++) {
local_qmf_buffer[k + 0] = (WORD32)(qmf_buf_real[i][k] * 64);
local_qmf_buffer[k + 64] = (WORD32)(qmf_buf_imag[i][k] * 64);
}
ploc_qmf_buf_real = local_qmf_buffer;
ploc_qmf_buf_imag = local_qmf_buffer + 64;
ixheaacd_esbr_inv_modulation(ploc_qmf_buf_real,
&ptr_sbr_dec->str_synthesis_qmf_bank,
sbr_tables_ptr->qmf_dec_tables_ptr);
ixheaacd_shiftrountine_with_rnd_hq(ploc_qmf_buf_real, ploc_qmf_buf_imag,
&ptr_filt_states[ixheaacd_drc_offset],
no_synthesis_channels,
out_scalefactor + 1);
ixheaacd_esbr_qmfsyn64_winadd(ptr_filt_states_1, ptr_filt_states_2,
filter_l, &time_out[0], ch_fac);
syn_buffer = ptr_sbr_dec->time_sample_buf + i * 64;
for (k = 0; k < 64; k++) {
syn_buffer[k] = (FLOAT32)time_out[k] / (1 << 16);
}
ptr_filt_states_1 += sixty4;
ptr_filt_states_2 -= sixty4;
sixty4 = -sixty4;
ixheaacd_drc_offset -= 128;
if (ixheaacd_drc_offset < 0) ixheaacd_drc_offset += 1280;
filter_l += 64;
if (filter_l == qmf_bank->p_filter_32 + 640)
filter_l = (WORD32 *)qmf_bank->p_filter_32;
p1 += no_synthesis_channels;
}
qmf_bank->filter_pos_syn_32 = filter_l;
qmf_bank->ixheaacd_drc_offset = ixheaacd_drc_offset;
if (!mps_sbr_flag) ptr_frame_data->reset_flag = 0;
if (apply_processing && !mps_sbr_flag) {
ptr_header_data->pstr_freq_band_data->qmf_sb_prev =
ptr_header_data->pstr_freq_band_data->sub_band_start;
}
}
WORD32 ixheaacd_sbr_dec(ia_sbr_dec_struct *ptr_sbr_dec, WORD16 *ptr_time_data,
ia_sbr_header_data_struct *ptr_header_data,
ia_sbr_frame_info_data_struct *ptr_frame_data,
ia_sbr_prev_frame_data_struct *ptr_frame_data_prev,
ia_ps_dec_struct *ptr_ps_dec,
ia_sbr_qmf_filter_bank_struct *ptr_qmf_synth_bank_r,
ia_sbr_scale_fact_struct *ptr_sbr_sf_r,
FLAG apply_processing, FLAG low_pow_flag,
WORD32 *ptr_work_buf_core,
ia_sbr_tables_struct *sbr_tables_ptr,
ixheaacd_misc_tables *pstr_common_tables, WORD ch_fac,
ia_pvc_data_struct *ptr_pvc_data, FLAG drc_on,
WORD32 drc_sbr_factors[][64],
WORD32 audio_object_type) {
WORD i;
WORD slot, reserve;
WORD save_lb_scale;
WORD op_delay;
WORD32 *p_arr_qmf_buf_real[MAX_ENV_COLS + MAX_ENV_COLS];
WORD32 **p_arr_qmf_buf_imag = &p_arr_qmf_buf_real[MAX_ENV_COLS];
WORD32 *ptr;
WORD hbe_flag = ptr_header_data->hbe_flag;
FLOAT32 **pp_qmf_buf_real = NULL;
FLOAT32 **pp_qmf_buf_imag = NULL;
FLOAT32 pvc_dec_out_buf[16 * 64];
WORD upsample_ratio_idx = ptr_header_data->sbr_ratio_idx;
WORD no_bins;
WORD mps_sbr_flag = ptr_frame_data->mps_sbr_flag;
WORD stereo_config_idx = ptr_frame_data->stereo_config_idx;
WORD sbr_mode = ptr_frame_data->sbr_mode;
WORD usac_flag = ptr_header_data->usac_flag;
FLOAT32 *pvc_qmf_enrg_arr = (FLOAT32 *)ptr_sbr_dec->pvc_qmf_enrg_arr;
memset(pvc_dec_out_buf, 0, 1024 * sizeof(FLOAT32));
memset(pvc_qmf_enrg_arr, 0, 512 * sizeof(FLOAT32));
if (audio_object_type == AOT_ER_AAC_ELD) {
op_delay = 0;
} else {
op_delay = 6;
}
if (usac_flag) {
pp_qmf_buf_real = ptr_sbr_dec->pp_qmf_buf_real;
pp_qmf_buf_imag = ptr_sbr_dec->pp_qmf_buf_imag;
if (upsample_ratio_idx == SBR_UPSAMPLE_IDX_4_1) {
op_delay = 2 * 6;
}
}
no_bins = (ptr_header_data->num_time_slots * ptr_header_data->time_step);
if (!usac_flag) {
WORD32 num = op_delay;
WORD32 *ptr_pers_qmf_real = ptr_sbr_dec->ptr_sbr_overlap_buf;
WORD32 *p_scr_qmf_real = ptr_work_buf_core + (2 << (6 + !low_pow_flag));
if (!low_pow_flag) {
num = num << 1;
}
if (audio_object_type != AOT_ER_AAC_ELD) {
memcpy(p_scr_qmf_real, ptr_pers_qmf_real,
sizeof(WORD32) * NO_SYNTHESIS_CHANNELS * num);
}
ptr = p_scr_qmf_real;
for (slot = 0; slot < op_delay + no_bins; slot++) {
p_arr_qmf_buf_real[slot] = ptr;
ptr += NO_SYNTHESIS_CHANNELS;
if (!low_pow_flag) {
p_arr_qmf_buf_imag[slot] = ptr;
ptr += NO_SYNTHESIS_CHANNELS;
}
}
ptr_sbr_dec->str_sbr_scale_fact.lb_scale = 0;
if (apply_processing) {
ixheaacd_rescale_x_overlap(ptr_sbr_dec, ptr_header_data, ptr_frame_data,
ptr_frame_data_prev, p_arr_qmf_buf_real,
low_pow_flag);
}
}
if (usac_flag) {
WORD32 num_anal_bands = ptr_sbr_dec->str_codec_qmf_bank.no_channels;
WORD32 codec_x_delay = 0;
WORD32 core_syn_ch_index = 0;
WORD32 frame_move = 288;
WORD32 core_frame_size = ptr_header_data->core_frame_size;
if (hbe_flag) {
codec_x_delay = 32;
}
if (upsample_ratio_idx == SBR_UPSAMPLE_IDX_4_1) {
codec_x_delay = 2 * codec_x_delay;
}
if (hbe_flag || mps_sbr_flag) {
core_syn_ch_index = num_anal_bands;
} else {
core_syn_ch_index = ptr_header_data->pstr_freq_band_data->sub_band_start;
}
frame_move = 9 * num_anal_bands;
memmove(ptr_sbr_dec->core_sample_buf,
ptr_sbr_dec->core_sample_buf + core_frame_size,
frame_move * sizeof(FLOAT32));
memcpy(&ptr_sbr_dec->core_sample_buf[frame_move],
&ptr_sbr_dec->time_sample_buf[0], core_frame_size * sizeof(FLOAT32));
memmove(
&ptr_sbr_dec->qmf_buf_real[0][0],
&ptr_sbr_dec
->qmf_buf_real[ptr_sbr_dec->str_codec_qmf_bank.num_time_slots][0],
(op_delay + SBR_HF_ADJ_OFFSET + codec_x_delay) * sizeof(FLOAT32) * 64);
memmove(
&ptr_sbr_dec->qmf_buf_imag[0][0],
&ptr_sbr_dec
->qmf_buf_imag[ptr_sbr_dec->str_codec_qmf_bank.num_time_slots][0],
(op_delay + SBR_HF_ADJ_OFFSET + codec_x_delay) * sizeof(FLOAT32) * 64);
memmove(&ptr_sbr_dec->sbr_qmf_out_real[0][0],
&ptr_sbr_dec->sbr_qmf_out_real[ptr_sbr_dec->str_codec_qmf_bank
.num_time_slots][0],
(op_delay + SBR_HF_ADJ_OFFSET) * sizeof(FLOAT32) * 64);
memmove(&ptr_sbr_dec->sbr_qmf_out_imag[0][0],
&ptr_sbr_dec->sbr_qmf_out_imag[ptr_sbr_dec->str_codec_qmf_bank
.num_time_slots][0],
(op_delay + SBR_HF_ADJ_OFFSET) * sizeof(FLOAT32) * 64);
if (hbe_flag) {
memmove(&ptr_sbr_dec->ph_vocod_qmf_real[0][0],
&ptr_sbr_dec->ph_vocod_qmf_real[ptr_sbr_dec->str_codec_qmf_bank
.num_time_slots][0],
64 * sizeof(FLOAT32) * (op_delay + SBR_HF_ADJ_OFFSET));
memmove(ptr_sbr_dec->ph_vocod_qmf_imag,
ptr_sbr_dec->ph_vocod_qmf_imag +
ptr_sbr_dec->str_codec_qmf_bank.num_time_slots,
64 * sizeof(FLOAT32) * (op_delay + SBR_HF_ADJ_OFFSET));
}
ixheaacd_esbr_analysis_filt_block(
ptr_sbr_dec, sbr_tables_ptr,
op_delay + codec_x_delay + SBR_HF_ADJ_OFFSET);
if (hbe_flag) {
WORD32 err_code = ixheaacd_qmf_hbe_apply(
ptr_sbr_dec->p_hbe_txposer,
ptr_sbr_dec->qmf_buf_real + (op_delay + SBR_HF_ADJ_OFFSET) +
ESBR_HBE_DELAY_OFFSET,
ptr_sbr_dec->qmf_buf_imag + (op_delay + SBR_HF_ADJ_OFFSET) +
ESBR_HBE_DELAY_OFFSET,
ptr_sbr_dec->str_codec_qmf_bank.num_time_slots,
ptr_sbr_dec->ph_vocod_qmf_real + (op_delay + SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->ph_vocod_qmf_imag + (op_delay + SBR_HF_ADJ_OFFSET),
ptr_frame_data->pitch_in_bins);
if (err_code) return err_code;
if (upsample_ratio_idx == SBR_UPSAMPLE_IDX_4_1) {
ixheaacd_hbe_repl_spec(
&ptr_sbr_dec->p_hbe_txposer->x_over_qmf[0],
ptr_sbr_dec->ph_vocod_qmf_real + (op_delay + SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->ph_vocod_qmf_imag + (op_delay + SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->str_codec_qmf_bank.num_time_slots,
ptr_sbr_dec->p_hbe_txposer->max_stretch);
}
}
ixheaacd_qmf_enrg_calc(ptr_sbr_dec, upsample_ratio_idx, low_pow_flag);
if (!mps_sbr_flag && apply_processing) {
WORD32 err_code = 0;
err_code = ixheaacd_generate_hf(
ptr_sbr_dec->qmf_buf_real + (SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->qmf_buf_imag + (SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->ph_vocod_qmf_real + (SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->ph_vocod_qmf_imag + (SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->sbr_qmf_out_real + (SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->sbr_qmf_out_imag + (SBR_HF_ADJ_OFFSET), ptr_frame_data,
ptr_header_data);
if (err_code) return err_code;
ptr_pvc_data->pvc_rate = ptr_header_data->upsamp_fac;
if (sbr_mode == PVC_SBR) {
ixheaacd_pvc_process(
ptr_pvc_data, ptr_header_data->pstr_freq_band_data->sub_band_start,
ptr_frame_data->str_pvc_frame_info.border_vec[0],
&pvc_qmf_enrg_arr[0], &pvc_dec_out_buf[0]);
ptr_pvc_data->prev_pvc_flg = 1;
} else {
memset(pvc_dec_out_buf, 0, 1024 * sizeof(FLOAT32));
ptr_pvc_data->prev_pvc_flg = 0;
}
ptr_pvc_data->prev_first_bnd_idx =
ptr_header_data->pstr_freq_band_data->sub_band_start;
ptr_pvc_data->prev_pvc_rate = ptr_pvc_data->pvc_rate;
ptr_frame_data->pstr_sbr_header = ptr_header_data;
if (ptr_header_data->hbe_flag == 0)
ixheaacd_sbr_env_calc(
ptr_frame_data, ptr_sbr_dec->sbr_qmf_out_real + (SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->sbr_qmf_out_imag + (SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->qmf_buf_real + (SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->qmf_buf_imag + (SBR_HF_ADJ_OFFSET), NULL,
ptr_sbr_dec->scratch_buff, pvc_dec_out_buf);
else
ixheaacd_sbr_env_calc(
ptr_frame_data, ptr_sbr_dec->sbr_qmf_out_real + (SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->sbr_qmf_out_imag + (SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->qmf_buf_real + (SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->qmf_buf_imag + (SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->p_hbe_txposer->x_over_qmf, ptr_sbr_dec->scratch_buff,
pvc_dec_out_buf);
} else {
for (i = 0; i < 64; i++) {
memset(ptr_sbr_dec->sbr_qmf_out_real[i], 0, 64 * sizeof(FLOAT32));
memset(ptr_sbr_dec->sbr_qmf_out_imag[i], 0, 64 * sizeof(FLOAT32));
}
}
ixheaacd_esbr_synthesis_filt_block(
ptr_sbr_dec, ptr_header_data, ptr_frame_data, apply_processing,
pp_qmf_buf_real, pp_qmf_buf_imag, stereo_config_idx, sbr_tables_ptr,
mps_sbr_flag, ch_fac);
ptr_frame_data->prev_sbr_mode = sbr_mode;
return 0;
}
ixheaacd_cplx_anal_qmffilt(
ptr_time_data, &ptr_sbr_dec->str_sbr_scale_fact,
&p_arr_qmf_buf_real[op_delay], &p_arr_qmf_buf_imag[op_delay],
&ptr_sbr_dec->str_codec_qmf_bank, sbr_tables_ptr->qmf_dec_tables_ptr,
ch_fac, low_pow_flag, audio_object_type);
{
WORD shift1, shift2;
WORD min_shift;
WORD shift_over;
WORD reserve_ov1, reserve_ov2;
WORD reservea[2];
WORD i = 0;
WORD usb = ptr_sbr_dec->str_codec_qmf_bank.usb;
WORD iter_val = 1;
if (audio_object_type == AOT_ER_AAC_ELD ||
audio_object_type == AOT_ER_AAC_LD) {
iter_val = 0;
}
do {
WORD t1 = op_delay;
WORD t2 = no_bins + op_delay;
if (i) {
t1 = 0;
t2 = op_delay;
}
reservea[i] = (*ixheaacd_ixheaacd_expsubbandsamples)(
p_arr_qmf_buf_real, p_arr_qmf_buf_imag, 0, usb, t1, t2, low_pow_flag);
i++;
} while (i <= iter_val);
;
reserve = reservea[0];
if (audio_object_type != AOT_ER_AAC_ELD &&
audio_object_type != AOT_ER_AAC_LD)
reserve_ov1 = reservea[1];
else
reserve_ov1 = reserve;
ptr_sbr_dec->max_samp_val = ixheaacd_min32(reserve, reserve_ov1);
reserve_ov2 = (*ixheaacd_ixheaacd_expsubbandsamples)(
ptr_sbr_dec->str_hf_generator.lpc_filt_states_real,
ptr_sbr_dec->str_hf_generator.lpc_filt_states_imag, 0, usb, 0,
LPC_ORDER, low_pow_flag);
reserve_ov1 = ixheaacd_min32(reserve_ov1, reserve_ov2);
shift1 = ptr_sbr_dec->str_sbr_scale_fact.lb_scale + reserve;
shift2 = ptr_sbr_dec->str_sbr_scale_fact.ov_lb_scale + reserve_ov1;
min_shift = ixheaacd_min32(shift1, shift2);
shift_over = (shift2 - min_shift);
reserve -= (shift1 - min_shift);
ptr_sbr_dec->str_sbr_scale_fact.ov_lb_scale += (reserve_ov1 - shift_over);
(*ixheaacd_adjust_scale)(p_arr_qmf_buf_real, p_arr_qmf_buf_imag, 0, usb, 0,
op_delay, reserve_ov1 - shift_over, low_pow_flag);
(*ixheaacd_adjust_scale)(p_arr_qmf_buf_real, p_arr_qmf_buf_imag, 0, usb,
op_delay, (no_bins + op_delay), reserve,
low_pow_flag);
(*ixheaacd_adjust_scale)(ptr_sbr_dec->str_hf_generator.lpc_filt_states_real,
ptr_sbr_dec->str_hf_generator.lpc_filt_states_imag,
0, usb, 0, LPC_ORDER, reserve_ov1 - shift_over,
low_pow_flag);
ptr_sbr_dec->str_sbr_scale_fact.lb_scale += reserve;
save_lb_scale = ptr_sbr_dec->str_sbr_scale_fact.lb_scale;
}
{
WORD32 num = no_bins;
WORD32 *p_loc_qmf_real =
&p_arr_qmf_buf_real[op_delay][NO_ANALYSIS_CHANNELS];
if (!low_pow_flag) {
num = num << 1;
}
ixheaacd_clr_subsamples(p_loc_qmf_real, num - 1, (NO_SYN_ANA_CHANNELS));
}
if (apply_processing) {
WORD16 degree_alias[NO_SYNTHESIS_CHANNELS];
WORD16 *border_vec = ptr_frame_data->str_frame_info_details.border_vec;
if (low_pow_flag) {
memset(degree_alias, 0, NO_SYNTHESIS_CHANNELS * sizeof(WORD16));
}
if (low_pow_flag) {
WORD32 com_low_band_scale;
ixheaacd_low_pow_hf_generator(
&ptr_sbr_dec->str_hf_generator, p_arr_qmf_buf_real, degree_alias,
border_vec[0] * ptr_header_data->time_step,
ptr_header_data->time_step *
ixheaacd_sub16_sat(
border_vec[ptr_frame_data->str_frame_info_details.num_env],
ptr_header_data->num_time_slots),
ptr_header_data->pstr_freq_band_data->num_if_bands,
ptr_frame_data->max_qmf_subband_aac, ptr_frame_data->sbr_invf_mode,
ptr_frame_data_prev->sbr_invf_mode, ptr_sbr_dec->max_samp_val,
ptr_work_buf_core);
com_low_band_scale =
ixheaacd_min32(ptr_sbr_dec->str_sbr_scale_fact.ov_lb_scale,
ptr_sbr_dec->str_sbr_scale_fact.lb_scale);
ptr_sbr_dec->str_sbr_scale_fact.hb_scale =
(WORD16)(com_low_band_scale - 2);
} else {
ixheaacd_hf_generator(
&ptr_sbr_dec->str_hf_generator, &ptr_sbr_dec->str_sbr_scale_fact,
p_arr_qmf_buf_real, p_arr_qmf_buf_imag, ptr_header_data->time_step,
border_vec[0],
ixheaacd_sub16_sat(
border_vec[ptr_frame_data->str_frame_info_details.num_env],
ptr_header_data->num_time_slots),
ptr_header_data->pstr_freq_band_data->num_if_bands,
ptr_frame_data->max_qmf_subband_aac, ptr_frame_data->sbr_invf_mode,
ptr_frame_data_prev->sbr_invf_mode, ptr_work_buf_core,
audio_object_type);
}
ixheaacd_calc_sbrenvelope(
&ptr_sbr_dec->str_sbr_scale_fact, &ptr_sbr_dec->str_sbr_calc_env,
ptr_header_data, ptr_frame_data, ptr_frame_data_prev,
p_arr_qmf_buf_real, p_arr_qmf_buf_imag, degree_alias, low_pow_flag,
sbr_tables_ptr, pstr_common_tables,
ptr_work_buf_core + (LPC_ORDER << (6 + !low_pow_flag)),
audio_object_type);
memcpy(ptr_frame_data_prev->sbr_invf_mode, ptr_frame_data->sbr_invf_mode,
ptr_header_data->pstr_freq_band_data->num_if_bands * sizeof(WORD32));
ptr_frame_data_prev->coupling_mode = ptr_frame_data->coupling_mode;
ptr_frame_data_prev->max_qmf_subband_aac =
ptr_frame_data->max_qmf_subband_aac;
ptr_frame_data_prev->end_position =
border_vec[ptr_frame_data->str_frame_info_details.num_env];
ptr_frame_data_prev->amp_res = ptr_frame_data->amp_res;
} else {
ptr_sbr_dec->str_sbr_scale_fact.hb_scale = save_lb_scale;
}
if (!low_pow_flag) {
for (i = 0; i < LPC_ORDER; i++) {
WORD32 *p_loc_qmf_real = &p_arr_qmf_buf_real[no_bins - LPC_ORDER + i][0];
WORD32 *p_loc_qmf_imag = &p_arr_qmf_buf_imag[no_bins - LPC_ORDER + i][0];
WORD32 *plpc_filt_states_real =
&ptr_sbr_dec->str_hf_generator.lpc_filt_states_real[i][0];
WORD32 *plpc_filt_states_imag =
&ptr_sbr_dec->str_hf_generator.lpc_filt_states_imag[i][0];
memcpy(plpc_filt_states_real, p_loc_qmf_real,
sizeof(WORD32) * (ptr_sbr_dec->str_codec_qmf_bank.usb));
memcpy(plpc_filt_states_imag, p_loc_qmf_imag,
sizeof(WORD32) * (ptr_sbr_dec->str_codec_qmf_bank.usb));
}
} else {
for (i = 0; i < LPC_ORDER; i++) {
WORD32 *p_loc_qmf_real = &p_arr_qmf_buf_real[no_bins - LPC_ORDER + i][0];
WORD32 *plpc_filt_states_real =
&ptr_sbr_dec->str_hf_generator.lpc_filt_states_real[i][0];
memcpy(plpc_filt_states_real, p_loc_qmf_real,
sizeof(WORD32) * (ptr_sbr_dec->str_codec_qmf_bank.usb));
}
}
if (apply_processing && ptr_header_data->channel_mode == PS_STEREO &&
((audio_object_type != AOT_ER_AAC_ELD) &&
(audio_object_type != AOT_ER_AAC_LD))) {
WORD32 ps_scale;
ixheaacd_init_ps_scale(ptr_ps_dec, &ptr_sbr_dec->str_sbr_scale_fact);
ixheaacd_cplx_synt_qmffilt(p_arr_qmf_buf_real, p_arr_qmf_buf_imag, op_delay,
&ptr_sbr_dec->str_sbr_scale_fact, ptr_time_data,
&ptr_sbr_dec->str_synthesis_qmf_bank, ptr_ps_dec,
1, 0, sbr_tables_ptr, pstr_common_tables, ch_fac,
drc_on, drc_sbr_factors, audio_object_type);
ps_scale = ptr_sbr_dec->str_sbr_scale_fact.ps_scale;
ptr_sbr_sf_r->ov_lb_scale = ps_scale;
ptr_sbr_sf_r->lb_scale = ps_scale;
ptr_sbr_sf_r->hb_scale = ps_scale;
ixheaacd_cplx_synt_qmffilt(p_arr_qmf_buf_real, p_arr_qmf_buf_imag, op_delay,
ptr_sbr_sf_r, ptr_time_data + 1,
ptr_qmf_synth_bank_r, ptr_ps_dec, 0, 0,
sbr_tables_ptr, pstr_common_tables, ch_fac,
drc_on, drc_sbr_factors, audio_object_type);
} else {
ixheaacd_cplx_synt_qmffilt(p_arr_qmf_buf_real, p_arr_qmf_buf_imag, op_delay,
&ptr_sbr_dec->str_sbr_scale_fact, ptr_time_data,
&ptr_sbr_dec->str_synthesis_qmf_bank, ptr_ps_dec,
0, low_pow_flag, sbr_tables_ptr,
pstr_common_tables, ch_fac, drc_on,
drc_sbr_factors, audio_object_type);
}
{
WORD32 num = op_delay;
WORD32 *p_loc_qmf_real = ptr_sbr_dec->ptr_sbr_overlap_buf;
WORD32 *p_loc_qmf_real_1 = &p_arr_qmf_buf_real[no_bins][0];
if (!low_pow_flag) {
num = num << 1;
}
memcpy(p_loc_qmf_real, p_loc_qmf_real_1,
sizeof(WORD32) * NO_SYNTHESIS_CHANNELS * num);
}
ptr_sbr_dec->str_sbr_scale_fact.ov_lb_scale = save_lb_scale;
return 0;
}
WORD32 ixheaacd_esbr_dec(ia_sbr_dec_struct *ptr_sbr_dec,
ia_sbr_header_data_struct *ptr_header_data,
ia_sbr_frame_info_data_struct *ptr_frame_data,
FLAG apply_processing, FLAG low_pow_flag,
ia_sbr_tables_struct *ptr_sbr_tables, WORD ch_fac) {
WORD32 i;
WORD32 op_delay;
WORD32 codec_x_delay = 0;
FLOAT32 **pp_qmf_buf_real = ptr_sbr_dec->pp_qmf_buf_real;
FLOAT32 **pp_qmf_buf_imag = ptr_sbr_dec->pp_qmf_buf_imag;
WORD32 upsample_ratio_idx = ptr_header_data->sbr_ratio_idx;
WORD32 core_frame_size = ptr_header_data->core_frame_size;
WORD32 no_bins;
WORD32 mps_sbr_flag = ptr_frame_data->mps_sbr_flag;
WORD32 stereo_config_idx = ptr_frame_data->stereo_config_idx;
WORD32 hbe_flag = ptr_header_data->hbe_flag;
WORD32 sbr_mode = ptr_frame_data->sbr_mode;
op_delay = 6;
if (upsample_ratio_idx == SBR_UPSAMPLE_IDX_4_1) {
op_delay = 2 * 6;
}
no_bins = ptr_sbr_dec->str_codec_qmf_bank.num_time_slots;
ptr_sbr_dec->str_sbr_scale_fact.lb_scale = 0;
{
WORD32 num_anal_bands = ptr_sbr_dec->str_codec_qmf_bank.no_channels;
WORD32 frame_move = 288;
if (hbe_flag) {
codec_x_delay = 32;
}
if (upsample_ratio_idx == SBR_UPSAMPLE_IDX_4_1) {
codec_x_delay = 2 * codec_x_delay;
}
frame_move = 9 * num_anal_bands;
memmove(ptr_sbr_dec->core_sample_buf,
ptr_sbr_dec->core_sample_buf + core_frame_size,
frame_move * sizeof(FLOAT32));
memcpy(&ptr_sbr_dec->core_sample_buf[frame_move],
&ptr_sbr_dec->time_sample_buf[0], core_frame_size * sizeof(FLOAT32));
memmove(
&ptr_sbr_dec->qmf_buf_real[0][0],
&ptr_sbr_dec
->qmf_buf_real[ptr_sbr_dec->str_codec_qmf_bank.num_time_slots][0],
(op_delay + SBR_HF_ADJ_OFFSET + codec_x_delay) * sizeof(FLOAT32) * 64);
memmove(
&ptr_sbr_dec->qmf_buf_imag[0][0],
&ptr_sbr_dec
->qmf_buf_imag[ptr_sbr_dec->str_codec_qmf_bank.num_time_slots][0],
(op_delay + SBR_HF_ADJ_OFFSET + codec_x_delay) * sizeof(FLOAT32) * 64);
memmove(&ptr_sbr_dec->sbr_qmf_out_real[0][0],
&ptr_sbr_dec->sbr_qmf_out_real[ptr_sbr_dec->str_codec_qmf_bank
.num_time_slots][0],
(op_delay + SBR_HF_ADJ_OFFSET) * sizeof(FLOAT32) * 64);
memmove(&ptr_sbr_dec->sbr_qmf_out_imag[0][0],
&ptr_sbr_dec->sbr_qmf_out_imag[ptr_sbr_dec->str_codec_qmf_bank
.num_time_slots][0],
(op_delay + SBR_HF_ADJ_OFFSET) * sizeof(FLOAT32) * 64);
if (hbe_flag) {
memmove(&ptr_sbr_dec->ph_vocod_qmf_real[0][0],
&ptr_sbr_dec->ph_vocod_qmf_real[ptr_sbr_dec->str_codec_qmf_bank
.num_time_slots][0],
64 * sizeof(FLOAT32) * (op_delay + SBR_HF_ADJ_OFFSET));
memmove(ptr_sbr_dec->ph_vocod_qmf_imag,
ptr_sbr_dec->ph_vocod_qmf_imag +
ptr_sbr_dec->str_codec_qmf_bank.num_time_slots,
64 * sizeof(FLOAT32) * (op_delay + SBR_HF_ADJ_OFFSET));
}
}
ixheaacd_esbr_analysis_filt_block(
ptr_sbr_dec, ptr_sbr_tables,
op_delay + codec_x_delay + SBR_HF_ADJ_OFFSET);
if (hbe_flag) {
WORD32 err = ixheaacd_qmf_hbe_apply(
ptr_sbr_dec->p_hbe_txposer,
ptr_sbr_dec->qmf_buf_real + (op_delay + SBR_HF_ADJ_OFFSET) +
ESBR_HBE_DELAY_OFFSET,
ptr_sbr_dec->qmf_buf_imag + (op_delay + SBR_HF_ADJ_OFFSET) +
ESBR_HBE_DELAY_OFFSET,
ptr_sbr_dec->str_codec_qmf_bank.num_time_slots,
ptr_sbr_dec->ph_vocod_qmf_real + (op_delay + SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->ph_vocod_qmf_imag + (op_delay + SBR_HF_ADJ_OFFSET),
ptr_frame_data->pitch_in_bins);
if (err) return err;
if (upsample_ratio_idx == SBR_UPSAMPLE_IDX_4_1) {
ixheaacd_hbe_repl_spec(
&ptr_sbr_dec->p_hbe_txposer->x_over_qmf[0],
ptr_sbr_dec->ph_vocod_qmf_real + (op_delay + SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->ph_vocod_qmf_imag + (op_delay + SBR_HF_ADJ_OFFSET),
ptr_sbr_dec->str_codec_qmf_bank.num_time_slots,
ptr_sbr_dec->p_hbe_txposer->max_stretch);
}
}
ixheaacd_qmf_enrg_calc(ptr_sbr_dec, upsample_ratio_idx, low_pow_flag);
for (i = 0; i < 64; i++) {
memset(ptr_sbr_dec->sbr_qmf_out_real[i], 0, 64 * sizeof(FLOAT32));
memset(ptr_sbr_dec->sbr_qmf_out_imag[i], 0, 64 * sizeof(FLOAT32));
}
ixheaacd_esbr_synthesis_filt_block(
ptr_sbr_dec, ptr_header_data, ptr_frame_data, apply_processing,
pp_qmf_buf_real, pp_qmf_buf_imag, stereo_config_idx, ptr_sbr_tables,
mps_sbr_flag, ch_fac);
ptr_frame_data->prev_sbr_mode = sbr_mode;
return 0;
}
WORD32 ixheaacd_sbr_dec_from_mps(FLOAT32 *p_mps_qmf_output, VOID *p_sbr_dec,
VOID *p_sbr_frame, VOID *p_sbr_header) {
WORD32 i, k;
ia_sbr_frame_info_data_struct *ptr_frame_data =
(ia_sbr_frame_info_data_struct *)p_sbr_frame;
ia_sbr_header_data_struct *ptr_header_data =
(ia_sbr_header_data_struct *)p_sbr_header;
ia_sbr_dec_struct *ptr_sbr_dec = (ia_sbr_dec_struct *)p_sbr_dec;
ia_frame_info_struct *p_frame_info = &ptr_frame_data->str_frame_info_details;
WORD32 no_bins;
WORD32 upsample_ratio_idx = ptr_header_data->sbr_ratio_idx;
WORD32 op_delay = 6 + SBR_HF_ADJ_OFFSET;
WORD32 num_anal_bands = 40;
WORD32 mps_sbr_flag = ptr_frame_data->mps_sbr_flag;
WORD32 err = 0;
if (ptr_header_data->is_usf_4) {
op_delay += 6;
}
num_anal_bands = num_anal_bands - (upsample_ratio_idx << 3);
if (!mps_sbr_flag) {
return 0;
}
no_bins = ptr_header_data->output_framesize / 64;
for (i = 0; i < no_bins; i++) {
FLOAT32 *p_loc_mps_qmf_output =
p_mps_qmf_output + i * (MAX_NUM_QMF_BANDS_ESBR * 2);
for (k = 0; k < ptr_header_data->pstr_freq_band_data->sub_band_start; k++) {
ptr_sbr_dec->mps_qmf_buf_real[op_delay + i][k] = *p_loc_mps_qmf_output++;
ptr_sbr_dec->mps_qmf_buf_imag[op_delay + i][k] = *p_loc_mps_qmf_output++;
ptr_sbr_dec->mps_sbr_qmf_buf_real[SBR_HF_ADJ_OFFSET + i][k] =
ptr_sbr_dec->qmf_buf_real[SBR_HF_ADJ_OFFSET + i][k];
ptr_sbr_dec->mps_sbr_qmf_buf_imag[SBR_HF_ADJ_OFFSET + i][k] =
ptr_sbr_dec->qmf_buf_real[SBR_HF_ADJ_OFFSET + i][k];
}
}
if (ptr_frame_data->reset_flag) {
WORD32 l;
WORD32 start_band = ptr_header_data->pstr_freq_band_data->qmf_sb_prev;
WORD32 end_band = num_anal_bands;
WORD32 start_slot =
SBR_HF_ADJ_OFFSET + ptr_frame_data->rate * p_frame_info->border_vec[0];
for (l = start_slot; l < op_delay; l++) {
for (k = start_band; k < end_band; k++) {
ptr_sbr_dec->mps_qmf_buf_real[l][k] = 0.0;
ptr_sbr_dec->mps_qmf_buf_imag[l][k] = 0.0;
}
}
for (l = 0; l < SBR_HF_ADJ_OFFSET; l++) {
for (k = start_band; k < end_band; k++) {
ptr_sbr_dec->mps_qmf_buf_real[l][k] = 0.0;
ptr_sbr_dec->mps_qmf_buf_imag[l][k] = 0.0;
}
}
}
ptr_header_data->pstr_freq_band_data->qmf_sb_prev =
ptr_header_data->pstr_freq_band_data->sub_band_start;
err = ixheaacd_generate_hf(
ptr_sbr_dec->mps_qmf_buf_real + SBR_HF_ADJ_OFFSET,
ptr_sbr_dec->mps_qmf_buf_imag + SBR_HF_ADJ_OFFSET, NULL, NULL,
ptr_sbr_dec->mps_sbr_qmf_buf_real + SBR_HF_ADJ_OFFSET,
ptr_sbr_dec->mps_sbr_qmf_buf_imag + SBR_HF_ADJ_OFFSET, ptr_frame_data,
ptr_header_data);
if (err) return err;
ptr_frame_data->pstr_sbr_header = ptr_header_data;
ptr_frame_data->sbr_mode = ORIG_SBR;
ptr_frame_data->prev_sbr_mode = ORIG_SBR;
if (ptr_header_data->hbe_flag == 0)
ixheaacd_sbr_env_calc(ptr_frame_data,
ptr_sbr_dec->mps_sbr_qmf_buf_real + SBR_HF_ADJ_OFFSET,
ptr_sbr_dec->mps_sbr_qmf_buf_imag + SBR_HF_ADJ_OFFSET,
ptr_sbr_dec->mps_qmf_buf_real + SBR_HF_ADJ_OFFSET,
ptr_sbr_dec->mps_qmf_buf_imag + SBR_HF_ADJ_OFFSET,
NULL, ptr_sbr_dec->scratch_buff, NULL);
else
ixheaacd_sbr_env_calc(ptr_frame_data,
ptr_sbr_dec->mps_sbr_qmf_buf_real + SBR_HF_ADJ_OFFSET,
ptr_sbr_dec->mps_sbr_qmf_buf_imag + SBR_HF_ADJ_OFFSET,
ptr_sbr_dec->mps_qmf_buf_real + SBR_HF_ADJ_OFFSET,
ptr_sbr_dec->mps_qmf_buf_imag + SBR_HF_ADJ_OFFSET,
ptr_sbr_dec->p_hbe_txposer->x_over_qmf,
ptr_sbr_dec->scratch_buff, NULL);
for (i = 0; i < no_bins; i++) {
FLOAT32 *p_loc_mps_qmf_output =
p_mps_qmf_output + i * (MAX_NUM_QMF_BANDS_ESBR * 2);
for (k = 0; k < ptr_header_data->pstr_freq_band_data->sub_band_start; k++) {
*p_loc_mps_qmf_output++ =
ptr_sbr_dec->mps_qmf_buf_real[SBR_HF_ADJ_OFFSET + i][k];
*p_loc_mps_qmf_output++ =
ptr_sbr_dec->mps_qmf_buf_imag[SBR_HF_ADJ_OFFSET + i][k];
}
for (k = ptr_header_data->pstr_freq_band_data->sub_band_start; k < 64;
k++) {
*p_loc_mps_qmf_output++ =
ptr_sbr_dec->mps_sbr_qmf_buf_real[SBR_HF_ADJ_OFFSET + i][k];
*p_loc_mps_qmf_output++ =
ptr_sbr_dec->mps_sbr_qmf_buf_imag[SBR_HF_ADJ_OFFSET + i][k];
}
}
for (i = 0; i < op_delay; i++) {
memmove(ptr_sbr_dec->mps_qmf_buf_real[i],
ptr_sbr_dec->mps_qmf_buf_real[no_bins + i], 64 * sizeof(FLOAT32));
memmove(ptr_sbr_dec->mps_qmf_buf_imag[i],
ptr_sbr_dec->mps_qmf_buf_imag[no_bins + i], 64 * sizeof(FLOAT32));
memmove(ptr_sbr_dec->mps_sbr_qmf_buf_real[i],
ptr_sbr_dec->mps_sbr_qmf_buf_real[no_bins + i],
64 * sizeof(FLOAT32));
memmove(ptr_sbr_dec->mps_sbr_qmf_buf_imag[i],
ptr_sbr_dec->mps_sbr_qmf_buf_imag[no_bins + i],
64 * sizeof(FLOAT32));
}
ptr_frame_data->reset_flag = 0;
return err;
}